Answer:
Your answers are correct.
Step-by-step explanation:
The equality will be true for odd multiples of π/4, so the last two choices will not show the expression to be <em>not</em> an identity.
Answer:
2
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Two lines that cross each other have each pair of angles the same.
2x+6=96 --> x=45